Compact microfiber bragg gratings with high-index contrast

Yanxin Liu; Chao Meng; Aping Zhang; Yao Xiao; Huakang Yu; Limin Tong

doi:10.1364/OL.36.003115

Compact microfiber bragg gratings with high-index contrast

Yanxin Liu, Chao Meng, Aping Zhang, Yao Xiao, Huakang Yu, Limin Tong

Research output: Journal article publication › Journal article › Academic research › peer-review

109 Citations (Scopus)

Abstract

We fabricate fiber Bragg grating (FBG) in microfibers (MFs) using focused ion beam milling technique. By periodically etching 100nm-depth grooves on the surface of silica MFs with diameters less than 2 μm, evident grating features with transmission dip up to 15 dB are obtained. Because of the high-index contrast of the gratings structure, the length of the microfiber Bragg grating (MFBG) can be reduced to 500 μm level. Using a 518 μm-length 1:8 μmdiameter MFBG, we also demonstrate sensitivity up to 660nm per refractive index unit (RIU) for refractive index (RI) sensing. The highly compact MFBGs demonstrated here may serve as low-dimensional building blocks for miniaturized photonic components and devices.

Original language	English
Pages (from-to)	3115-3117
Number of pages	3
Journal	Optics Letters
Volume	36
Issue number	16
DOIs	https://doi.org/10.1364/OL.36.003115
Publication status	Published - 15 Aug 2011
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/OL.36.003115

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title = "Compact microfiber bragg gratings with high-index contrast",

abstract = "We fabricate fiber Bragg grating (FBG) in microfibers (MFs) using focused ion beam milling technique. By periodically etching 100nm-depth grooves on the surface of silica MFs with diameters less than 2 μm, evident grating features with transmission dip up to 15 dB are obtained. Because of the high-index contrast of the gratings structure, the length of the microfiber Bragg grating (MFBG) can be reduced to 500 μm level. Using a 518 μm-length 1:8 μmdiameter MFBG, we also demonstrate sensitivity up to 660nm per refractive index unit (RIU) for refractive index (RI) sensing. The highly compact MFBGs demonstrated here may serve as low-dimensional building blocks for miniaturized photonic components and devices.",

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T1 - Compact microfiber bragg gratings with high-index contrast

AU - Liu, Yanxin

AU - Meng, Chao

AU - Zhang, Aping

AU - Xiao, Yao

AU - Yu, Huakang

AU - Tong, Limin

PY - 2011/8/15

Y1 - 2011/8/15

N2 - We fabricate fiber Bragg grating (FBG) in microfibers (MFs) using focused ion beam milling technique. By periodically etching 100nm-depth grooves on the surface of silica MFs with diameters less than 2 μm, evident grating features with transmission dip up to 15 dB are obtained. Because of the high-index contrast of the gratings structure, the length of the microfiber Bragg grating (MFBG) can be reduced to 500 μm level. Using a 518 μm-length 1:8 μmdiameter MFBG, we also demonstrate sensitivity up to 660nm per refractive index unit (RIU) for refractive index (RI) sensing. The highly compact MFBGs demonstrated here may serve as low-dimensional building blocks for miniaturized photonic components and devices.

AB - We fabricate fiber Bragg grating (FBG) in microfibers (MFs) using focused ion beam milling technique. By periodically etching 100nm-depth grooves on the surface of silica MFs with diameters less than 2 μm, evident grating features with transmission dip up to 15 dB are obtained. Because of the high-index contrast of the gratings structure, the length of the microfiber Bragg grating (MFBG) can be reduced to 500 μm level. Using a 518 μm-length 1:8 μmdiameter MFBG, we also demonstrate sensitivity up to 660nm per refractive index unit (RIU) for refractive index (RI) sensing. The highly compact MFBGs demonstrated here may serve as low-dimensional building blocks for miniaturized photonic components and devices.

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DO - 10.1364/OL.36.003115

M3 - Journal article

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JO - Optics Letters

JF - Optics Letters

IS - 16

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Compact microfiber bragg gratings with high-index contrast

Abstract

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